Finding the Fourth Proportional to 64,998.50, 89,698.52 and 38,141.45

Step by Step Solution

1. Step 1: Write the proportion equation
   64,998.50 : 89,698.52 = 38,141.45 : x
2. Step 2: Convert to fraction form
   64,998.50/89,698.52 = 38,141.45/x
3. Step 3: Cross multiply
   64,998.50x = 89,698.52 × 38,141.45
4. Step 4: Simplify right side
   64,998.50x = 3,421,231,424.95
5. Step 5: Solve for x
   x = 3,421,231,424.95/64,998.50
6. Step 6: Final answer
   x = 52,635.55